The Ethos is a mod with incredible performance that will satisfy all users of Boro type tanks. Works with two 18650 batteries (not included) and charges via USB-C. Maximum power of 100 watts. Phenomenal capacity of 7ml. Refill from the front of the tank. Compatible with AVC coils (0.3, 0.6, 0.8ohm) from Across Vape as well as PnP and GTX coils. Ability to use an RBA deck with the Ethos tank. Beautiful informative 0.49" OLED display.